Three-dimensional printer



FIG. 1 is a front perspective view of the three-dimensional printer,showing our new design.

FIG. 2 is a front view thereof, shown without internal unclaimedportions;

FIG. 3 is a rear view thereof.

FIG. 4 is a top view thereof.

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines represent unclaimed portions of the three-dimensionalprinter and form no part of the claimed design.

CLAIM The ornamental design for a three-dimensional printer, as shownand described.